IAA RAS IAA Minor Planet Database

285571 (2000 PQ9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4324411214 ± 8.16e-10
Semi-major axis (a)1.9035657241 AU ± 5.85e-10
Inclination (i)13.48266244° ± 1.16e-06
Long. of Asc. Node (Ω)297.16245353° ± 7.40e-07
Arg. of Perihelion (ω)7.05697041° ± 3.81e-06
Mean Anomaly (M)231.96152491° ± 1.27e-06
Mean Motion (n)0.3752843568°/day ± 1.73e-10
Perihelion dist (q)1.08038563 AU ± 1.59e-09
Aphelion dist (Q)2.72674582 AU ± 1.76e-09
Orbital Period2.62634524 yr ± 1.21e-09
Physical Parameters
H (abs. magnitude)18.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.478″
Uncertainty0
Orbit TypeAmor
MOID0.064547 AU
Observations Used7147
Radar Obs Used1
Oppositions13
Arc Total2000-2021
First Observation Used2000-08-09
Last Observation Used2024-12-06
Observations (13272)
Date Type RA Dec Mag Band Observatory
2021-06-21 19:54:02 S 17 08 05.330 -68 44 29.58 – V C57
2021-06-21 19:54:02 s 1 -193339.81 1 +212992.57 1940.0 – C57
2021-06-21 20:24:02 S 17 08 11.172 -68 44 24.68 – V C57
2021-06-21 20:24:02 s 1 -193635.33 9 +211110.22 5990.0 – C57
2021-06-21 20:34:02 S 17 08 14.314 -68 44 19.18 – V C57
2021-06-21 20:34:02 s 1 -193731.61 2 +210480.36 4000.0 – C57
2021-06-21 20:44:02 S 17 08 14.654 -68 44 17.52 – V C57
2021-06-21 20:44:02 s 1 -193826.75 9 +209849.30 8660.0 – C57
2021-06-21 20:54:02 S 17 08 16.020 -68 44 18.31 – V C57
2021-06-21 20:54:02 s 1 -193920.77 4 +209217.04 9950.0 – C57
2021-06-21 21:04:02 S 17 08 17.714 -68 44 15.86 – V C57
2021-06-21 21:04:02 s 1 -194013.65 3 +208583.57 7850.0 – C57
2021-06-21 21:24:02 S 17 08 21.127 -68 44 14.46 – V C57
2021-06-21 21:24:02 s 1 -194195.98 3 +207313.00 3440.0 – C57
2021-06-21 21:34:02 S 17 08 23.383 -68 44 12.95 – V C57
2021-06-21 21:34:02 s 1 -194285.42 2 +206675.91 1090.0 – C57
2021-06-21 21:54:02 S 17 08 26.112 -68 44 10.82 – V C57
2021-06-21 21:54:02 s 1 -194460.82 7 +205398.08 6050.0 – C57
2021-06-21 22:04:02 S 17 08 26.261 -68 44 05.32 – V C57
2021-06-21 22:04:02 s 1 -194546.78 0 +204757.35 3320.0 – C57
2021-06-21 22:14:02 S 17 08 30.012 -68 44 07.12 – V C57
2021-06-21 22:14:02 s 1 -194631.56 2 +204115.40 7100.0 – C57
2021-06-21 22:24:02 S 17 08 30.638 -68 44 07.12 – V C57
2021-06-21 22:24:02 s 1 -194715.16 6 +203472.23 7380.0 – C57
2021-06-21 22:34:02 S 17 08 33.286 -68 44 06.11 – V C57
2021-06-21 22:34:02 s 1 -194797.58 7 +202827.85 4130.0 – C57
2021-06-21 22:44:02 S 17 08 34.678 -68 44 02.98 – V C57
2021-06-21 22:44:02 s 1 -194878.81 9 +202182.25 7340.0 – C57
2021-06-21 22:54:02 S 17 08 35.942 -68 44 00.64 – V C57
2021-06-21 22:54:02 s 1 -194958.85 7 +201535.43 7010.0 – C57
2021-06-21 23:04:02 S 17 08 38.549 -68 44 03.05 – V C57
2021-06-21 23:04:02 s 1 -195037.69 7 +200887.39 3100.0 – C57
2021-06-21 23:14:02 S 17 08 39.360 -68 44 03.88 – V C57
2021-06-21 23:14:02 s 1 -195115.33 2 +200238.13 5610.0 – C57
2021-06-21 23:24:02 S 17 08 41.215 -68 44 02.29 – V C57
2021-06-21 23:24:02 s 1 -195191.75 6 +199587.65 4520.0 – C57
2021-06-21 23:34:02 S 17 08 42.917 -68 44 00.56 – V C57
2021-06-21 23:34:02 s 1 -195266.96 5 +198935.94 9820.0 – C57
2021-06-21 23:54:02 S 17 08 46.006 -68 43 59.34 – V C57
2021-06-21 23:54:02 s 1 -195413.71 3 +197628.84 9490.0 – C57
2021-06-22 00:14:02 S 17 08 49.258 -68 43 57.54 – V C57
2021-06-22 00:14:02 s 1 -195555.53 2 +196316.83 4510.0 – C57
2021-06-22 00:34:02 S 17 08 52.543 -68 43 54.41 – V C57
2021-06-22 00:34:02 s 1 -195692.37 4 +194999.91 4730.0 – C57
2021-06-22 00:44:02 S 17 08 54.245 -68 43 53.87 – V C57
2021-06-22 00:44:02 s 1 -195758.91 5 +194339.59 4260.0 – C57
2021-06-22 00:54:02 S 17 08 56.153 -68 43 53.76 – V C57
2021-06-22 00:54:02 s 1 -195824.19 5 +193678.05 30.0 – C57
2021-06-22 01:04:02 S 17 08 57.617 -68 43 52.54 – V C57
2021-06-22 01:04:02 s 1 -195888.20 8 +193015.27 2040.0 – C57
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-07-23 05:30:00 67479907 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)